LOG4 Log level solution for Info,tomcat console still brushes a lot of debug information

The Tomcat project has been running well, the Catalina log is normal output, and suddenly a lot of the debug log output a day. Find a long time on the internet to find a classmate is also encountered the same problem, the problem is linked here, finally he solved the problem, the predecessors planted tree Horong.

The problem is that a colleague introduced a new package in the POM, imported the Logback jar, and Logback and sl4j conflicts led to a large number of debug log outputs, and it was OK to remove the Logback jar.

			<exclusions>
				<exclusion>
					<artifactId>logback-classic</artifactId>
					< groupid>ch.qos.logback</groupid>
				</exclusion>
				<exclusion>
					<artifactId> logback-core</artifactid>
					<groupId>ch.qos.logback</groupId>
				</exclusion>
			</exclusions>